ASTROSAT CZTI

Data Quality Report

Orbit 40243

Creation date: 2024-06-27T22:14:03.348397
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_086T01_9000005534_40243cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40243cztM0_level2_quad_clean.evt
Size (bytes)340,488,00092,171,520
Size324.7 MB 87.9 MB
Events in quadrant A3,378,849617,451
Events in quadrant B2,670,976654,719
Events in quadrant C2,619,290627,286
Events in quadrant D3,548,342544,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131513
B0110132
C0104482
D0138362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49612204.434590%
B4961521.048176%
C4961130.262044%
D49612825.684338%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7054 4962 160 160 2.27% 3.22%
B 7054 4962 38 38 0.54% 0.77%
C 7054 4962 9 9 0.13% 0.18%
D 7054 4962 251 251 3.56% 5.06%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 248 664517 5774.51 564 555 115.0
A 10 83 474612 4122.89 564 555 115.0
A 2 79 27150 231.3 564 555 115.0
B 5 255 124305 1130.08 577 563 109.5
B 7 202 114249 1038.24 577 563 109.5
B 0 245 93470 848.47 577 563 109.5
C 15 214 212652 1577.55 572 578 134.4
C 10 22 102875 760.96 572 578 134.4
C 0 10 44744 328.54 572 578 134.4
D 12 227 981115 7257.01 550 537 135.1
D 9 19 119852 883.02 550 537 135.1
D 12 79 114845 845.96 550 537 135.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter